# Flow Free vs Viper Puzzle

The clearest difference is in-app purchases: Viper Puzzle at none against Flow Free's 10. Viper Puzzle also leads on ads (none vs shown) and update cadence (fortnightly vs every 10 months). Flow Free's advantage is ratings volume (14K vs 1). On price, rating and device support there is nothing between them.

Both are free to download. Flow Free sells 10 one-off in-app purchases. Viper Puzzle asks for nothing beyond the download.

Viper Puzzle holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Flow Free has 14K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 82% of Flow Free's written reviews are positive against 100% of Viper Puzzle's.

Flow Free ships an update every 10 months, Viper Puzzle fortnightly. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Flow Free | Viper Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (14K ratings)](https://appshunter.io/ios/app/flow-free-shapes/id6642642713/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/viper-puzzle/id6765531411/reviews)** |
| Number of ratings | **14K** | 1 |
| Positive reviews | 81.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 90 MB | 41 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Big Duck Games LLC](https://appshunter.io/developer/435664937) | [CESARE CELOZZI](https://appshunter.io/developer/1895982023) |

## What reviewers say

### Flow Free

[App page](https://appshunter.io/ios/app/flow-free-shapes/id6642642713)

Connect matching colored pipes to fill the board and solve puzzles. Avoid crossing pipes to complete each level. Offers hundreds of free puzzles with varying difficulty, plus daily challenges and a timed mode.

**Highlights:** Connect matching colors, Cover the entire board, Hundreds of shaped puzzles, Daily new levels, Time Trial mode, Game Center achievements, Cloud sync

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Hints | $0.99 | one-time |
| Fall Harvest Colors | $0.99 | one-time |
| Pastel Colors | $0.99 | one-time |
| Neon Rainbow Colors | $0.99 | one-time |
| Winter Chill Colors | $0.99 | one-time |
| Starter Bundle | $1.99 | one-time |
| Unlock All Themes | $1.99 | one-time |
| 20 Hints | $2.99 | one-time |
| Unlock All Packs & Remove Ads | $4.99 | one-time |
| 100 Hints | $9.99 | one-time |

**What reviewers like**

- 🚀 Great new gameplay twist
- 👍 Consistent with previous Flow Free games
- 💡 Innovative 3D and irregular shapes
- 🎨 Beautiful and relaxing visuals

**What reviewers complain about**

- 🔀 Inconsistent UI changes from previous Flow Free games
- 💰 In-app purchases for color packs
- 🤔 Confusing button placements

**Reported bugs**

- Accidental hint usage due to button placement
- Visibility issues with overlapping paths in 3D levels

**Requested features**

- Restore original UI layout from previous Flow Free games
- Option to disable in-app purchase prompts
- Forward/backward level navigation


### Viper Puzzle

[App page](https://appshunter.io/ios/app/viper-puzzle/id6765531411)

Experience a unique snake game where strategy and spatial reasoning replace reflexes. Navigate intricate levels, collect eggs to grow your snake, and master precise tap-to-turn controls. This game offers a satisfying puzzle experience for short bursts or extended play.

**Highlights:** Hand-crafted puzzle levels, Precise tap-to-turn controls, In-game tutorial, Collect eggs to grow snake, Multiple snake skins, Offline play

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Flow Free free?

Flow Free is free to download, with in-app purchases available.

### Is Viper Puzzle free?

Viper Puzzle is free to download, with no in-app purchases.

### Which has better reviews, Flow Free or Viper Puzzle?

Viper Puzzle is rated higher. Flow Free averages 4.8 out of 5 from 14K ratings, while Viper Puzzle averages 5.0 from 1 ratings.

### Do Flow Free or Viper Puzzle have ads?

Flow Free shows ads; Viper Puzzle does not.

### Which is updated more often, Flow Free or Viper Puzzle?

Flow Free ships an update every 10 months, and Viper Puzzle fortnightly. Most recently, Flow Free was updated on November 10, 2026 and Viper Puzzle on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*